should be verified on CCIE official website. CCDE : The expert-level network design engineers who is capable of translating business needs, budget, and operational constraints into the design of a converged solution. CCIE Routing & Switching: The most popular CCIE track. The expert-level network engineers who can plan, operate and troubleshoot complex, converged network infrastructure. CCIE Collaboration: Suitable expert level for the Collaboration Architects, Unified Communications Architects, or Voice and Video Network Managers. CCIE Data Center: Expert of the planning, design, implementation and management of complex, modern IT data center infrastructure. CCIE Security: Concerning the modern security risks, threats, vulnerabilities, The security experts who have the knowledge and skills to architect, engineer, implement, troubleshoot, and support the full suite of Cisco security technologies and solutions using the latest industry best practices to secure systems and environments. CCIE Service Provider: The expert-level ISP (Internet Service Provider) network engineers who bring the knowledge and skill to build an extensible Service Provider infrastructure to deliver rich managed services. CCIE Wireless: The expert who is able to demonstrate broad theoretical knowledge of wireless networking and a solid understanding of wireless local area networking (WLAN) technologies from Cisco. CCIE Emeritus Active CCIE holders are able to apply for CCIE Emeritus status when they reach their tenth anniversary of CCIE certification. Lifetime Emeritus tenure is applicable to candidates who maintains their CCIE Active or Emeritus status for 20 consecutive years. It is necessary to submit the application of CCIE Emeritus within 60 days of the due date of the license expiry date. CCIE Emeritus status generally applies to those who have moved out of "day to day" network and technical work but would like to stay involved in the CCIE program serving as ambassadors to current and future CCIE programs. A CCIE Emeritus status holder is a non-active CCIE holder but candidates are recognized for technical proficiency and long term status within the CCIE program. CCIE Emeritus holders have the opportunity to re-enter active CCIE status by taking any current CCIE-level written exam. Continuing Education Program The Continuing Education Program is an alternative way of re-certification for the CCIE license instead of passing the written exam. This program is managed according to three core principles: Flexibility, Diversity and Integrity. Flexibility: Allowing individuals a wide range of options for the re-certification. Diversity: Several options of training: online courses, instructor-led training and authoring of content. Integrity: Achieved by